Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
If the vehicle becomes stuck or disabled at depth, a hydrophone can be used to locate the submerged instrument. When at the surface, the AUV can send its retrieval location to a web server or cell phone.
Public Domain.
